单选题 Farmers do not like crows (乌鸦) because these birds eat
newly-planted seeds (种子). They are afraid that they will not have anything left
in autumn if the birds eat up all the seeds. It is hard for
farmers to get close enough to kill crows. Crows have very good eyes and good
hearing. They are also very careful. While some are eating the newly-planted
seeds, others sit on the tallest trees around the fields. "Caw-caw-caw," cries
the first crow to see farmers coming. All the other "lookout" crows join in the
crying and then, in no time at all, there is not a crow to be seen.
Farmers have found several ways to kill crows. But it is good that there
are still crows about. These birds are our friends. They pay for the seeds they
eat by killing pests (害虫). One pest, for example, can eat up several plants in a
few hours. With thousands of them at work in one night, we might find ourselves
without food to eat. This is why we should not try to kill off the crow.
单选题
According to the writer, crows only bring troubles to farmers.
A.Right
B.Wrong
C.Doesn't say
【正确答案】
B
【答案解析】[解析] 句意：根据本文作者，乌鸦只会给农民带来麻烦。是非题。从文章第三段第二句“But it is good that there are still crows about.”可以推断出，本题的判断是与原文不符。故选B。
单选题
It is not easy for farmers to kill crows.
A.Right
B.Wrong
C.Doesn't say
【正确答案】
A
【答案解析】[解析] 句意：农民们要杀死乌鸦并不容易。推断题。从文章第二段前三句“It is hard for farmers to get close enough to kill crows. Crows have very good eyes and good hearing. They are also very careful.”可以推断出本题是正确的。故选A。